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Food and Agriculture Organization of the United Nationsfor a world without hunger
Equipment Class: Fishing technologyEquipment Type: Environmental measures
Galvanic time release is a device to avoid ghost fishing by pots left or lost in open sea. It is manufactured by inserting plated wire eyes (cathodes) into precisely machined cylinders of a highly active metal alloy (anode).
The Galvanic Timed Release is quite simple with only 3 components (two cathodes and one anode). When the GTR is placed in an electrolyte such as seawater the cathodes, being plated with a more passive or noble metal, cause the cylinder of more anodic or active material to electrochemically degrade, evolving hydrogen gas (visibly).
The operation costs for GTR mechanism is minimal and the industry is usining it more and more to prevent ghost fishing by pots.

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